The UL steel fireproof door can be equipped with windows, louvers, ventilation louvers, etc. as required. UL steel fireproof door only needs to be pushed open by hand, and then it will be closed silently and automatically, without the sound of collision like the inner and outer doors, thus creating a quiet environment.

ZHTdoors branddeure, 31 jaar se produksie ondervinding in branddeure en Vensters. Die belangrikste UL-branddeure, EN-branddeure, BS EN-branddeure, ens.. Ons het sertifisering. ZHTdeure ondersteun OEM en gratis ontwerp. Ons voordele: goeie gehalte, fabrieksprys, goeie diens. Welkom om ons te raadpleeg.